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MATHEMATICAL DESCRIPTION OF THE PHYSICAL PROCESS OF FORMING THE SURFACE WATERS QUALITY
Abstract
Research goal of the paper is mathematical description of the physical process of forming the surface waters quality on the example of the Lower Section of the Ingulets River. The methodology in which the chemical status of a water body (category and class of water quality) is assessed based on the analysis of observational data (concentrations of priority hazardous pollutants) was used. Based on a general assessment, the suitability of surface waters for use in various economic purposes is established. We propose to represent dependence of the category of water quality on the concentration of hydrochemical ingredients in the form of regression equations. The article provides examples of such a representation of the dependencies of the water quality categories on the values of hydrochemical ingredients for the Lower Section of the Ingulets River. An environmental assessment of the surface waters quality of the Lower Section of the Ingulets River was carried out on the basis of the analysis of hydrochemical ingredients in accordance with the fishery standards for the observation period of 2018 year with subsequent calculation and generalization. The results can serve as a basis for visualizing the results of modeling the ecological state of surface waters using GIS technologies, determining the impact of anthropogenic load on ecosystems of water bodies, estimating changes of water quality, informing the public, solving economic and social issues, related to the rational use of natural resources and ensuring environmental protection.
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